21383277050 has 12 divisors (see below), whose sum is σ = 39772895406. Its totient is φ = 8553310800.

The previous prime is 21383277037. The next prime is 21383277079. The reversal of 21383277050 is 5077238312.

It can be written as a sum of positive squares in 3 ways, for example, as 17444333929 + 3938943121 = 132077^2 + 62761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21383276995 and 21383277013.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213832721 + ... + 213832820.

Almost surely, 2^21383277050 is an apocalyptic number.

21383277050 is a deficient number, since it is larger than the sum of its proper divisors (18389618356).

21383277050 is a wasteful number, since it uses less digits than its factorization.

21383277050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427665553 (or 427665548 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 21383277050 in words is "twenty-one billion, three hundred eighty-three million, two hundred seventy-seven thousand, fifty".